It Is Believed That the Median Yearly Income in a Suburb

question 46

Multiple Choice

It is believed that the median yearly income in a suburb of Atlanta is $70,000. A sample of 67 residents was taken. Thirty-eight had yearly incomes above $70,000, 26 had yearly incomes below $70,000, and 3 had yearly incomes equal to $70,000. The null hypothesis to be tested is H₀: Median = $70,000. The mean and the standard deviation (respectively) for this test about the median are

• A) 32 and 4.
• B) 32 and 16.
• C) 33.5 and 4.
• D) 33.5 and 16.

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Definitions:

Hypothesis

A hypothesis is a proposed explanation or educated guess for a phenomenon, based on observation, that can be tested through further investigation and experimentation.

Conclusion

The end or finish of an event, process, or text, often summarizing the main points or outcomes.

Legal Competence

The ability of an individual to understand and participate in legal proceedings, or to make legally recognized decisions.

Defense Counsel

A lawyer who represents a defendant in legal proceedings, protecting their rights and interests.